Windmill



(No ModeL) G. W. MCKENZIE.

WINDMILL. .NO. 263,714. Patented Sept. 5, 1882.

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SPECIFICATION forming part of Letters Patent No. 263,714, datedSeptember 5, 1882,

Application filed July BL, 1882. (N0 model.)

[1" 0 all whom it may concern:

Be it known thatl, GEORGE W. MCKENZIE, a citizen of the United States,residing at Harrington, in the county of Washington and State of Maine,have invented certain new and useful Improvements in Windmills, of whichthe following is a specification, reference being had therein to theaccompanying drawings.

My invention relates to certain improvements in windmills designed forpumping, and will first be described, and then designated in the claims.

In the drawings hereto annexed, Figure l is an elevation of the windmillarranged to work a force-pump. Fig. 2 is an inverted plan view of themovable platform. Fig. 3 is a view of the pronged rod which raises theplatform.

The letter A designates the pole or spar, which supports the windmill Band its con nections O, a movable platform, adapted to be raised andlowered a few inches. An 'iron rod, D, has two prongs, D, the upper endsof which enter holes 6 in the lower side of the trestle or frame piecesG. The lower end of the iron rod has one end of a short chain, f,attached, which passes overapulley, G. The other end of the chain isattached to a wire or rod, H, which leads off to any desired point-- adwelling-house, for instance-from which it may be desired to stop orstart the wheel.

The horizontal" vane support I isstayed by a curved brace, J, one ofwhich is made fast on each side of the support. The support is swiveledat t, on the upper end of the pole, and a collar, 70, fits looselyaround the pole below,

' the curved braces being attached to the collar.

By this'means the vane and wind wheel may turn freely in a horizontalplane. The windwheel is mounted on a crank-shaft, Z, above thevanesupport, and a wire, m, attached to the box a on the crank, passesdown through the central bore, a, of the pole, which terminates at oneside at b, from which point down the pole has in its side a groove, 19,which is practically a continuation of the bore. At or near the pointwhere the side groove commences is the lower end of the wire at, whichis provided with a swivel-connection, c, to which the wire m isattached, and connects with the bellcrank lever q, pivoted to a sidebracket, g, on the pole. The. swivel 0 permits the windwheel to turnwithout twisting the lower part manner as to depress the piston.

piston-rod when the crank on the shaft lis on V the descending part ofits revolution, and said spring also serves to keep the wires m and tstrained. If a suction-pump be used, the spring to may be attached tothe piston-rod in such a This mode of transmitting power from the wheelto the pump horizontally has several advantages over the ordinarymethod-via, the wires or rods may be carried underground, through theair, around corners, and to a long or short distance, while in theordinary way it would not be practicable to carry the'wires undergroundor around corners, and but short distances through air.

An arched support or standard, d, is above the crank-shaft, and-aspring, d, connects the box a on the crank-shaft with the support. Thisspring assists the wind-wheel when the crank is on the ascending part ofthe revolution, and hinders it as much when on the descending part, andthus eqnalizes in some degree the work of the wheel, whereby the wheelwill revolve during a light wind, when otherwise it would stop on, theupturn of the crank.

A lever, 00, is employed to draw the wire or rod H when it is desired tostop the windmill.

The pole may be sustained in any desired manner. In the present instancesilLpieces L are placed at right angles on the ground, and fourbraces,N, are employed, one end of which bear on the sills and oneagainst the pole. Wire stays may also be used to assist in supportingthe pole. .The trestle or four frame pieces, G, of the platform are socrossed at the center and secured as to form a square opening, (see Fig.2,) which fits loosely over or around the upper end of the pole, whichjssquared, as at A, to adapt it to fit the squarearrangement the platformmay slide up and down on the squarrd part of the pole, but is preventedthereby from turning.

The operation of the starting and stopping device is as follows: Thewire H may be led to the house or any other convenient place, where itmay be attached to the lever 00, and by moving the lever in a directionto bring a strain on the wire H the chainf, to which the pronged rod isattached, is drawn over the pulley Gr, raising the pronged rod, and withit the movable platform 0, which acts as a frictionbrake by pressingagainst the rims of the wheel with such force as to stop it instantly inthe heaviest wind. When it is desired to start the wheel at a time whenthe wind is blowingitis only necessary to release the lever a2, and theplatform falls of its own weight.

It will be seen thatthe wheel may be stopped in any position where itmay happen to be, and will then obey the rudder or vane, rolling aroundon the platform 0 in any direction to face the wind.

The platform may be raised by means of levers, pulleys, weights, or inany way found most convenient.

Having described my invention, I claim and desire to secure by LettersPatent of the United States- 1. In a windmill, the combination, with thewind-wheel, of a supporting-pole having its 0 upper end squared, avertically-movable.platform having at its center a square opening, andmeans to raise the platform, as set forth.

2. In a wind mill, the combination, with the wind-wheel, of a supportfor the wheel, a vertically-movable platform around the support,adapted, when up, to press against the rim of the wind-wheel, a rodhaving two prongs whose upper ends are attached to the platform, a chainattached to the lower end of the said rod, and a pulley mounted abovethe lower end of the rod, and over which pulley the chain passes, as setforth.

3. In a pumping-windmill, the combination, with the crank-shaft and wireattached thereto, of the bell-crank levers q and r, the wire mconnecting them, a horizontal lever, a, one end of which is connected bya wire, it, with the bell-crank lever r, and the other end with thepiston-rod v of a foree-pump, and a spring, w, attached to the saidpiston-rod and adapted to raise it, as set forth.

In testimony whereofI affix my signature in presence of two witnesses.

GEORGE W. MCKENZIE.

Witnesses:

' FRED. G. NASH,

LUKE HAPGOOD.

